Akira Brando

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable-speed pumped-storage power generating system
- Patent number 4,816,696
- Issue date Mar 28, 1989
- Hitachi, Ltd.
- Akihiro Sakayori
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...